Broke 5k power seat SOLVED

[barry@moonbeast.com]

I got this one figured out finally.  The motors all worked when I applied 
voltage to them, the controller swap did nothing, the relay has nothing to do 
with the seat adjustments.

It turned out to be a bad switch module.  The three seat adjustment switches 
had probably been wet and were corroded.  What really threw me off was that the 
backrest switch also wasn't working- it was actually fine, the failure of that 
switch cluster also caused the backrest adjustment to have no power.  It also 
threw me off that all the switches were working just a few days ago.

I spliced the old switches into the new seat's wiring harness, and voilá! - 
it's working now.

Live and learn.  The backache will probably go away in a few weeks :|

Still trying to track down that chronic idle problem, but it's got a lower 
priority now that the car will idle in traffic.  Driver's seat heater doesn't 
work either.  Doh.

At least the list is getting shorter.
=BB=

Quoting barry at moonbeast.com:

> I'm troubleshooting the driver's side seat in my 5kcstq - I replaced the
> trashed
> beige heated power seat with a black one from Force5 that's in much better
> shape.
> 
> When I originally replaced the shredded driver's seat, the electric
> adjustment
> and memory controls all still worked.  They also worked on the new seat after
> I
> was done with the swap.
> 
> However, when I had finished replacing the rear seats this weekend, I
> noticed
> the driver's seat electrics were no longer working.  So I've tried some
> things
> to try to track down the problem.  Here's what I've found:
> 
> -- Swapped old seat in, all the electrics work.
> -- Swapped new seat back in, still nothing works.  Nada.  Completely dead.
> -- Swapped old seat control unit and power relay into new seat, no joy.
> -- Passenger seat works no matter which seat is in.
> -- I can take the 9-pin power connecter on the floor of the car off the new
> seat, plug it into the old seat, and the old seat works.
> 
> I'm not sure what else could be causing the problem.
> 
> Trying to follow the Bentley is giving me a headache.
> 
> Any BTDT?  What should I look at next?  Man, nothing is ever easy with this
> car...
> 
> Thanks again!!
> =BB=
> 

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